Calculate unknown sides and angles of a triangle with ease. Supports various input combinations, including two angles and one side, two sides and one angle, or three sides.
Triangle Solver by William Jockusch




246+ iOS apps curated and reviewed
Triangle Solver is the household name in angle finder triangle, but it's far from the only option. We track 246+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 | Free | 4.2★ (30) | No | No | Aug 2026 | ||
| 2 | Free | 5.0★ (2) | No | No | May 2026 | ||
| 3 | Free | — | No | No | May 2026 | ||
| 4 | Free | 4.1★ (233) | No | No | Sep 2026 | ||
| 5 | Free | 5.0★ (1) | No | Yes | Sep 2026 | ||
| 6 | Free | 5.0★ (1) | No | No | Jul 2026 | ||
| 7 | Free | 4.7★ (159) | No | Yes | Sep 2026 | ||
| 8 | Free | 3.8★ (4) | No | Yes | Aug 2026 |




Calculate unknown sides and angles of a triangle with ease. Supports various input combinations, including two angles and one side, two sides and one angle, or three sides.






Calculate side lengths, angles, area, and perimeter of right-angle triangles. Visualizes the triangle with adjustable precision and offers options to rotate, flip, and customize themes. Reuses previous entries for efficiency.



This utility app helps you calculate triangle angles and data. It can determine if a corner is 90 degrees by taking measurements and inputting them into the app. You can also use it to calculate right triangle data.